Microfiber is split during manufacture into tiny fibers only 3 microns across. These fibers act like hooks to capture microscopic debris. When damp, cleaning solutions are bound to the surface of the microfiber in a powerful capillary action, absorbing 8 times its own weight in fluid. The wicking action means less water and chemicals are needed to achieve an exceptional level of clean, and the floors dry faster as a result. Lasts hundreds of launderings.